Last Updated on August 1, 2021 by Admin 1
When the log keyword is added to an access list statement, CPU utilization increases.
What is the source of the increased CPU utilization? (Choose all that apply.)
- the process switching of packets that match the ACE
- the incrementing of the match counter every 60 seconds
- the generation and transmission of log messages
- the CEF switching of packets that match the ACE
The source of the increased CPU utilization will have two sources. First is the process switching of each packet that matches the ACE, which is a slower switching method than CEF switching. The second is the generation and transmission of the log messages. Both effects can be mitigated by adjusting the logging interval and the message interval.
The CPU utilization does NOT increase from the incrementing of the match counter every 60 seconds. The match counter increments every 5 minutes by default.
The CPU utilization does NOT increase from the CEF switching of packets that match the ACE. Those packets will be process switched, which is a much slower process than CEF switching.
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